ncs don't work

I have successfully converted yolov3.ckpt to yolov3.xml. It's OK until now. But when I tested the model.ckpt on gtx1050 and the model.xml on ncs1, I got totally different outputs! Obviously the model.ckpt works on the gtx1050 and the model.xml on the ncs1 don't work. I wonder the reason and the way to let model.xml output right.